Subject: File #SR-CHX-2016-20
From: Sandy Sapa

September 15, 2017

I strongly object to North America Casin Holdings purchasing the Chicago Stock Exchange. North America Casin Holdings has a lot of Chinese companies and is led by Chongquing Casin Enterprise Group. Since this would be the first US exchange to be owned by mostly Chinese companies, I think we are setting a very bad precedent for ownership of American financial institutions. Before you know it, more Chinese companies may do the same thing, and we, as Americans, would lose a lot of control over our well established American financial institutions. Do you think that China would allow the Americans to buy into their financial institutions? I doubt that very much, so we definitely should not do it!!! We must now, more than ever, exert our control of many of our American institutions, especially the financial ones.